Hay rake and loader



(No Model.) I 2SheetsSheet 1. O. W. BAIRD.

HAY RAKE AND LOADER. No. 508,397. Patented Nov. 14, 1893.

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HAY RAKE AND LOADBR.

Patented Nov. 14, 1893.

" UNITED STATES PATENT QFFICE.

CHARLES W. BAIRD, OF MILLERSBURG, IOWA.

HAY; RAKE AN D LOADER.

SPECIFICATION forming part of Letters Patent No. 508,397, dated November14, 1893.

Application filed April 10, 1893. Serial 110,469,692. (No model.) I

To all whom it may concern:

Be it known that 1, CHARLES W. BAIRD, a citizen of the United States ofAmerica, residing at Millersburg, in the county of Iowa and State ofIowa, have invented an Improved Hay Rake and Loader, of which thefollowing is a specification.

The objects of my invention are, broadly, to dispense with the expensivesprocket gears and crank shafts heretofore employed in transmittingmotion from the traction wheels to the elevator bars, and to substitutetherefor mechanism which will be cheap, simple, durable and operatedwith a minimum of power, and so arranged that any desirable movement maybe given to the lower end portion of the elevator bars so that all ofthe power may be used to the best possible advantage.

With these ends in View my invention consists first in the constructionof a device for imparting an alternately reciprocating motion to twolevers, from the traction wheels of the device.

My invention consists further in the construction of mechanism wherebythe alternate I elevator bars are connected with the said levers to beoperated thereby and an approximately elliptical stroke impartedthereto.

My invention consists further in certain other minor details ofconstruction, arrangement and combination of parts as hereinafter setforth, pointed out in my claims, and illustrated in the accompanyingdrawings, in whichv Figure 1 is a side elevation of the complete rakeand loader. Fig.2is an enlarged detail side view of the mechanism forimparting an alternately reciprocating motion to the two levers. Fig. 3is an enlarged, rear view of a portion of the elevator frame, showingthe mechanism for imparting an alternately reciprocating motion to thetwo levers, and connective parts. Fig. 4 is an enlarged detail side viewof the mechanism for imparting an approximately elliptical motion to theelevator bars, parts being broken away to reveal hidden portions andFig. 4 is a rear, edge view of the same.

Referring to the accompanying drawings, the reference letter A is usedto designate the' traction wheels, and A the supporting frame, which hasa slotted bottom A all of the ordinary construction.

The mechanism for imparting motion to the elevator bars is similar, oneach side of the machine, so that but one side will be here inafterdescribed.

A designates a cog Wheel fixed to the axle of the traction wheels of thedevice.

A is a shaft mounted in suitable bearings fixed to a portion of thesupporting frame and extended transversely of the device.

A is a cog wheel fixed to its outer end and in mesh with the wheel A Bdesignates a wheel fixed to the same shaft, and having formed on itsopposite sides the annular grooves B and B These grooves are preferablyformed by means of two concentric circular walls projecting laterallyfrom the sides of thewheel, and are preferably of such a size that thegrooves will extend from a point in proximity to the center of the WheelB to the outer edge of the other side of the center.

B and B are levers fulcrumed at their lower ends to a suitable portionof the frame and extended in close proximity to the opposite side of thewheel B.

B is an anti-friction roller, mounted upon a bolt fixed to the lever Bto enter the an nular groove B and B is a like roller connected with thelever B to work in the groove B It will thus be seen that a rotation ofthe wheel B will impart an alternately reciprocating motion to thelovers B and B by causing the anti-friction rollers B and B to engagethe sides of the annular grooves B and B said grooves being of such asize,'that-, as the rollers pass from .the outer portion of the wheel Btoward the central portion thereof, the said groove will have changedits position relative to the roller and wheel B as to allow the leversto swing in a vertical plane from their pivotal point on the frame andthe rollers be in a positionin advance of the central portion of thewheel B at all times, as clearly shown in Figs. 1 and 2. I

C designates a frame composed of two flat pieces of wood separated bymeans ofa block (J and placed in a position approximately parallel withthe frame A and pivotally mounted at the upper end portion on thesupport 0 which is fixed to the frame. The lower end portion of thisframe 0 is made capable of a slight vertical adjustment for purposeshereinafter set forth, by means of the set screw (l extended through thesupport C and working in slots (3 formed in the side pieces of theframe. In the central portion of each of the side pieces of this frame 0is a block D, approximately elliptical in shape and pivotally mountednear its rear upper portion upon the pivot l) and capable of a slightmovement in a vertical plane. Its lower forward end portion normallyrests upon the bottom side of the opening formed in the side piece ofthe frame 0.

D is a sleeve encircling the pivot D where it engages block D and D is anut upon one end of said pivot. By removing the sleeve D and tighteningthe nut D the block D may be held rigid for purposes hereinafterexplained.

F designates a bar extended tranversely of the machine and connectedwith each alternate elevator bar F (which bars have a sliding connectionwith the elevator frame at their upper end portions) by means of a braceF. This bar is extended above and beyond the side of the frame C, and asupport F depends from its outer end and has a flanged antifrictionroller F fixed to its end to enter the space between the outerelliptical block and the edges of the opening in the outer side piece ofthe frame C, with its flanges overlapping said parts, and F is a barconnecting said support F with the upper end of the lever B.

H designates a bar similar to the bar F and connected with the remainingelevator bars by the braces H and having a flanged antifriction roller Hconnected directly with its end to enter the space between the innerelliptical block and the edges of the opening in the inner side piece ofthe frame 0. This bar is connected with the lever B by means of a bar E.It will now be obvious that the straight reciprocating motion of thelevers B and B will transmit a motion to the elevator bars correspondingwith the shape of the block D (which in the present instance isapproximately elliptical) for the reason that the rollers will travelaround said block when motion is imparted to them by the levers. As thesaid roller reaches the forward end of the block it will elevate thesame and when it has passed beyond the block said block will fall andcompel the roller to return on the top edges thereof. The brackets thatsupport the bar F are of such a length that the bar H may perform itsmovement wholly beneath it, so that they will not interfere with eachother and if it is desirable to change the posit-ion of the stroke ofthe. elevator bars, that is, relative to the slatted bottom of the framethe frame 0 may be swung vertically on its pivot and adjusted to anyheight by the set screw C.

If desirable, the elliptical blocks may be permanently fixed and theirforward end portions hinged atJ in the manner shown in Fig. 4 so thatonly said hinged portion will be elevated by the roller, as indicated bydotted lines in the same figure. J is a hook by which said hingedportion may be secured to the block C so that the whole block will movein the manner first described, so that these parts may be usedinterchangeably.

I do not desire to be understood as limiting myself to the particularshape of the blocks 0 nor to the combination of the particular manner ofimparting an alternately reciprocating motion to the levers D and D andthe particular manner of imparting motion to the elevator bars.

What I claim as my invention, and desire to secure by Letters Patent ofthe United States therefor, is-

1. In a hay rake and loader mechanism for imparting an alternatelyreciprocating motion, from the traction wheels, to the elevator bars,comprising the following elements, in combination to wit; a rotatableshaft geared to the traction wheels to be operated thereby, a wheel Bfixed to said shaft and having the annular grooves B and B formedthereon, levers B and B pivotally mounted in a suitable portion of themachine frame and having the anti-friction rollers B and B connectedtherewith and placed in the said grooves, cross bars connected with thealternate elevatorbars and bars connecting said cross bars with the saidlevers, to operate in the manner set forth.

2. In a hay rake and loader, mechanism for imparting an approximatelyelliptical motion to two sets of elevator bars, in opposite directions,comprising the following elements in combination, to wit, two flatboards secured to the elevator frame near its lower end portion, anapproximately elliptical block pivotally mounted in an opening in eachboard, to swing in a vertical plane, a roller interposed between theblock and the edges of the opening in each board, a bar connected withthe alternate elevator bars and with one of said rollers and a like barconnected with the remaining elevator bars and the remaining roller andmechanism deriving its motion from the traction wheels of the device toalternately reciprocate the said rollers, to operate in the manner setforth.

3. In a hay rake and loader, mechanism for imparting an approximatelyelliptical motion to two sets of elevator bars, in opposite directions,comprising the following elements, in combination, to wit; a frame 0composed of two flat side pieces, separated by the block C mounted onpart of the machine frame, an approximately elliptical block D in anopening in each side piece, pivoted at its rear end portion to swing ina vertical plane with its to enter the space between the innerelliptical block and the edges of the opening in the inner side piece ofthe frame to operate in the manner set forth, and means for imparting analternately reciprocating motion to the said rollers.

4. In a hay rake and loader mechanism for imparting an approximatelyelliptical motion to two sets of elevator bars in opposite directionscomprising the following elements in combination, to wit, a frame 0composed of two flat side'pieces separated by the block 0 and pivotallymounted at its forward end to a suitable portion of the frame and havinga set screw 0 to "provide means whereby the rear end may be verticallyadjusted for the purposes stated, an approximately elliptical block D inan opening in each side piece, pivoted at its rear end portion, to swingin a vertical plane, with its forward end normally rest- 1 ing upon thebottom of said opening, as set forth, a cross bar F, connected with eachalternate elevatorbar by means of the braces l? and having a bracket Fdepending from its outer end, to support a flanged roller F in the spacebetween the edgesof the outer elliptical block and the edge of theopening in its outer side piece of the frame (3, a like cross bar Hconnected with the remaining elevator bars by means of the braces H aroller H on its end to enter the space between the inner ellipticalblock and the edges of the opening in the inner side piece of the frameC, to operate in the manner set forth, and means for imparting analternately reciprocating motion to the said roller.

5. In a hay rake and loader the combination of the following elements towit; a flat board having an approximately elliptical opening therein, ablock D mounted in a pivot D a sleeve D interposed between the pivot andblock and a nut D on the end of said pivot, the forward section of saidblock hinged to the remainder thereof at J, and a hook J 2 whereby saidsections maybe secured together for the purposes stated.

6. An improved hay rake and loader comprising the following elements,arranged and combined as set forth, for the purposes stated, thetraction wheels A the frame A mounted thereon and having the slattedbottom A mechanism at each side of the machine for operating theelevator bars, comprising the cog wheel A a shaft A extendedtransversely of the machine a cog wheel A on each end thereof a wheel Bhaving the annular grooves B and B the levers B and B the anti-frictionrollers B and B the frame 0 composed of flat side pieces as set forthseparated by the block 0 and pivotally mounted on the supports (3 theset screw 0 extended through the upright O and slots 0 the blocks Dmounted on the pivots D the sleeve D and nuts 1), the cross bar F,connected with thealternate elevator bars F means whereby said bars haveflanged roller F on its lower end, the bar F the cross bar H, the bracesH and flanged roller H and the sections of the blocks D hinged at J andheld in position by the hook J 2 to operatein the manner set forth.

CHARLES W. BAIRDQ v Witnesses:

H. L. MCBRIDE, JOHN V. HATTER.

their upper ends slidingly connected with the" elevator frame, thebracket F having the

